ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
10th Edition
ISBN: 9781259972348
Author: Carey
Publisher: MCG CUSTOM
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Chapter 23, Problem 32P
Interpretation Introduction
Interpretation:
A reasonable mechanism is to be suggested for the formation of hemiketal intermediate in industrial process for preparation of phenol from cumene hydroperoxide.
Concept Introduction:
A hydroperoxide contains a peroxy
A hemiketal is obtained on addition of one molecule of alcohol to the carbonyl group of a ketone.
Strong acid such as sulfuric acid can protonate the
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The ketone 2-heptanone has been identified as contributing to the odor of a number of dairy products, including condensed milk and cheddar cheese. Describe the synthesis of 2-heptanone from acetylene and any necessary organic and inorganic reagents.
Aldehydes and ketones react with one molecule of an alcohol to form compounds called hemiacetals, in which there is one hydroxyl group and one ether-like group. Reaction of a hemiacetal with a second
molecule of alcohol gives an acetal and a molecule of water.
ROH, H+
OH
OR
Aldehyde/ketone
Alcohol
ROH, H+
Draw the structural formulas for the hemiacetal and the acetal formed between the following compounds:
OH
OH
OR
OR
• Use the wedge/hash bond tools to indicate stereochemistry where it exists.
+ H₂O
Hydrolysis of an acetal in aqueous acid gives an aldehyde or a ketone and two molecules of alcohol or one molecule of a diol. Draw the structural formulas for the products of hydrolysis of the following acetals in aqueous acid.
Chapter 23 Solutions
ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
Ch. 23.1 - Prob. 1PCh. 23.3 - Problem 23.2 One of the hydroxybenzoic acids is...Ch. 23.4 - Prob. 3PCh. 23.5 - Prob. 4PCh. 23.6 - Problem 23.5 The compound shown was required for...Ch. 23.8 - Prob. 6PCh. 23.8 - Prob. 7PCh. 23.9 - Prob. 8PCh. 23.9 - Prob. 9PCh. 23.10 - Prob. 10P
Ch. 23.12 - Prob. 11PCh. 23 - The IUPAC rules permit the use of common names for...Ch. 23 - Prob. 13PCh. 23 - Prob. 14PCh. 23 - Prob. 15PCh. 23 - Prob. 16PCh. 23 - Prob. 17PCh. 23 - Prob. 18PCh. 23 - Prob. 19PCh. 23 - Prob. 20PCh. 23 - Prob. 21PCh. 23 - Prob. 22PCh. 23 - Prob. 23PCh. 23 - Prob. 24PCh. 23 - Prob. 25PCh. 23 - Prob. 26PCh. 23 - Choose the reaction in each of the following pairs...Ch. 23 - Pentafluorophenol is readily prepared by heating...Ch. 23 - Prob. 29PCh. 23 - Treatment of p-hydroxybenzoic acid with aqueous...Ch. 23 - Prob. 31PCh. 23 - Prob. 32PCh. 23 - Treatment of 2,4,6-tri-tert-butylphenol with...Ch. 23 - Prob. 34PCh. 23 - Prob. 35PCh. 23 - Prob. 36DSPCh. 23 - Prob. 37DSPCh. 23 - Prob. 38DSPCh. 23 - Prob. 39DSP
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